Control unit



FIG. 1 is a front perspective view of a first embodiment of a control unit;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a front view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a top view thereof.

The broken lines shown in the figures are included for the purpose of illustrating portions of the control unit and form no part of the claimed design. 

CLAIM The ornamental design for a control unit, as shown and described. 